High-order adaptive optics requirements for direct detection of extrasolar planets: Application to the SPHERE instrument.

@article{Fusco2006HighorderAO,
  title={High-order adaptive optics requirements for direct detection of extrasolar planets: Application to the SPHERE instrument.},
  author={Thierry Fusco and G{\'e}rard Rousset and Jean-François Sauvage and Cyril Petit and J-L Beuzit and Kjetil Dohlen and David Mouillet and Julien Charton and Magalie Nicolle and Markus Kasper and Pierre Baudoz and Pascal Puget},
  journal={Optics express},
  year={2006},
  volume={14 17},
  pages={7515-34}
}
The detection of extrasolar planets implies an extremely high-contrast, long-exposure imaging capability at near infrared and probably visible wavelengths. We present here the core of any Planet Finder instrument, that is, the extreme adaptive optics (XAO) subsystem. The level of AO correction directly impacts the exposure time required for planet detection. In addition, the capacity of the AO system to calibrate all the instrument static defects ultimately limits detectivity. Hence, the… CONTINUE READING